Timber-dolly.



No. 682.663. Patented Spt. I7, 190|.

J. L. BAYLEY.

TIMBER DULLY.

(Application led Feb. 28, 1901.)

(No Model.)

witnesses.. Z, oz'

UNITED STATES l PATENT OEEICE.

JAMES L. BAYLEY, OF SPOKANE, WASHINGTON.

TIMBER-DOLLY.

srncrrren'rrolv forming part of Lettere Patent Neceaeee, dated september17, 1901,. Application filed February 28, 1901. Serial ITo. 49,188. (Nomodel.)

To all whom it may concern:

Be it known that l, JAMES L. BAYLEY, a citizen of the United States,residing at Spokane, in the county of Spokane and State of Washington,have invented certain new and useful Improvements in Timber-Dollies; andI do hereby declare the following to be afull, clear, and exactdescription of the invention, such as will enable others skilled in theart to whichitappertains to make and use the same.

This invention relates to a sort of truck used in and about lumber-millsand all heavy timber construction for the easy and rapid handling oftimbers; and the object of the invention is to improve the constructionof such trucks, commonly known as dollies, so as to reduce their weight,while retaining the same relative strength, and provide better means forlubricating them.

The nature of the invention will fully appear from the description andclaims following, reference being had to the accompanying drawings, inwhich- Figure l is a side` elevation of my improved dolly as in use.Fig. 2 vis a top View of the same. Fig. 3 is a central transversesection of the-same. Fig. 4 is an end view of the roll and its attachedspider. Fig. 5 is a fragment of the main frame, taken on the line a b.Fig. 6 is a View of the same part as seen from the under side.

For convenience in description the dolly may be considered as in theposition shown in Fig. l, though in practice it is used either side upand about equally in either position.

Referring now to the drawings, A is a rectangular frame of stout timbersA' and crossbeams A2. The usual practice is to connect these timbers bymortise and tenen, and the effect of this is so to weaken the parts thatthe timbers must for that reason be made much heavier than wouldotherwise be necessary. As the dolly must itself be handled more orless, it is desirable to make it as light as practicable, While at thesame time retaining ample strength for durability and the hard serviceto which it is subjected. Instead, therefore, of joining the timbers bymortise and tenon I provide the improved joint illustrated in Figs. 2,5, and 6.

0n the inner sides of the longitudinal timber A are made diagonal gainsA2, and the ends of the timbers A2 are correspondingly beveled at A4,sov as to abut on the inclined faces of said gains. The side timbers areheld in close contact with the cross-beams by a pair of tie-rods B,provided with suitable nuts B and washers B2, and the parts are heldsecurely against vertical dislocation by bolts B3, passing verticallythrough the side beams A and partially through the inclined ends of thecross-beams, as shown in Fig. 5. The holes `through which these boltspass are counterbored at the bottom of the frame, so that the same mayrest flat on the door or present a smooth surface for the log to rollover when the other side is up. Under the heads of the bolts should beplaced washers B4, and the upper ends are provided with suitable nuts B5and washers B2. Across the middle of this frame is placed a roll C. Tosecure the requisite lightness with great strength, the roll is madetubular and is provided With suitable heads C', fitted to its ends, asby the miter-joints shown. The heads are held securely in place bytie-rods D, provided with nuts D', four of such tierods being preferredin practice. Outside the heads are placed spiders E, having sockets E'in their arms to takethe nuts D and prevent their Working loose. Theouter sides of the spider-hubs E2 are faced, so as to run nicely againstthe inner sides of the boxes F, bolted to the side beams by suitablebolts G. The roll is secured to its axle H by keys I, and these are heldfrom working out by the spiders abutting on their outer ends, as shownin Fig. 3. The axle is made tubular for the sake of strength andlightness and also to serve as a receptacle for oil. Its ends arethreaded, and in them are fitted screw-plugs H'. The oil escapes insuitable small quantities to the bearings through small holes H2.

In practice the lubrication of the dolly'is an important feature and isgenerally neglected, so that the roll usually runs hard and dry. This islargely due to the fact that the dolly is used only occasionally anddoes not therefore have the care that is given to a machine in daily andconstant use. By my improvement the dolly is made self-oiling While inuse, and when at rest the oil is retained in the tubular axle. The rollis preferably made a little crowning in the middle, so as to be IOOeasily turned or cut, as it is commonly expressed, to move the timber atany desired angle.

Having thus described my invention, What I claim as new, and desire tosecure by Letters Patent, is-

l. In a timbendolly, the combination with a suitable roll and bearingstherefor, of a frame comprising two side beams and a pair ofcross-beams, the side beams being diagonally gained on the inner side totake the ends of the cross-beams, said cross-beams being beveled tocorrespond therewith, tierods adjacent to said cross-beams, and boltspassing vertically through the side beams and partially through the endsof the crossbeams, whereby the whole frame is securely bound and lockedtogether.

2. In a timber-dolly, the combination with a frame substantially asdescribed, of a tubular roll therefor, having heads iitted in its ends,tie-rods to draw them securely in position, and spiders having socketsin their arms to engage and hold the nuts and heads of said tie-rods.

3. In a timber-dolly, the combination with a suitable frame, of a roll,comprisinga tubular body, heads tted in its ends, tie-rods connectingsaid heads, an axle and keys to retain the heads thereon, and spidersexternai to the heads having nut-sockets in their arms to engage thenuts and heads of the tierods, and adapted to hold said keys in placewhen in position.

4:. In a timber-dolly, the combination with a suitable frame, bearingsand roll, substantially as described, ot a tubular axle for the roll,provided with oil-holes at the bearings, and plugs screwed in the endsto retain said oil.

In testimony whereof I affix my signature in presence of two Witnesses.

JAMES L. BAYLEY. Witnesses:

JOHN J. SMITH, R. A. HUTCHINsoN.

